- Mark McLelland -- Mark Miller
- Mark Miller -- Mark Mulligan
- Mark Nelson -- Mark O'Connor
- Mark Olson and The Original Harmony Ridge Creekdip -- Mark Poncy
- Mark Portmann -- Mark Rubin
- Mark Ryan -- Mark Sinnis
- Mark St. John -- Mark Tinney
- Mark Tuinei -- Mark Wills
- Mark Winston Kirk -- Markus Cuff
- Markus Rill -- Maro Kawabata
- Marques E Allan -- Marshal Ovard
- Marshall Andy Smalls -- Marshall Family
- Marshall Law -- Martha Adcock
- Martha Bartel -- Martha White
- Marthia Sides -- Martin Delray
- Martin Foster -- Martin Steitle
- Martin Stietle -- Martina Nolley
- Martine McBride -- Marty Haggard
- Marty Koppel -- Marty Roe
- Marty Slayton -- Marv Green
- Marv Hubbard -- Marvin Dykhuis
- Marvin Gaster -- Marvin Shiner